Improvement in steam-boiler furnaces



UNITED STATEsf PATENT A OFFICE.

CHARLES H. FOX, OF NEW ORLEANS, LOUISIANA.

IMPROVEMENT IN STEAM-BOILER FURNACES.

Specification forming part of Letters Patent No. 135,106, dated January '21, 1873.

` tion of Fig. 1.

This invention relates to an improvement in steam-boiler furnaces; and consists in supporting the deiector by tiles or columns in lieu of the pipes heretofore used, as I have found that in some localities where limestone-water is used very rapid incrustation is formed in the pipes, which would then be likely to burn and let the deflector fall, which is avoided by my invention.

This invention is an improvement on Letters Patent No. 123,882 and No. 131,871, granted to me, respectively, February 20, 1872, and October 1, 1872.

The construction and operation of my invention are as follows: A represents a ue-boiler of the ordinary construction, inclosed by the walls B B, as usual. C represents the gratebars, supported by bearing-bars at each end. At the rear end of the grate-bars is the bridgewall D, having its front side beveled off, as shown at d, and lined with nre-brick. At a short distance behind"'thTs bridge-wall is arranged the deflector E supported by the tiles or columns F, of which there may be as many as are desirable. These tiles are supported by the brick floor G, which is laid on the earth H. Immediately under the deflector E the said oor is curved or recessed to allow the products of combustion to pass under the deflector, by which they are retarded in their passage along the boiler. There may be one or more deflectors, and they may be slightly arched from column to column, if desired; but I prefer to construct them flat and straight, as the heat and products of combustion are, by the fiat ones, more evenly diffused along the surface of the boiler, while with the arched ones the fire and heat are concentrated along the center of the arch.

The great advantages of the detlectors sup- Yported by columns will be apparent to any one,

as they may be arranged with or without the pipes 5 and the iiat fire-brick deiiector, retains the heat a long while and communicates it very uniformly to the boiler, not only in the center, as is the case with the arched deflectors, but to the side as well, and thereby the advantage of creating a better circulation of water in the boiler can be obtained, and, at the same time, said deflectors are stronger, and can be very easily repaired when out of order or damaged in any way.

What I claim as new, and desire to secure by Letters Patent of the United States, is,-

1. The deilector E, in combination with the columns or supports F, when arranged substantially as and for the purpose set forth.

2. The arrangement of bridge-wall D with the deflector E, columns F, and curved iioor Gr, all constructed substantially as shown, and for the purpose specified.

In testimony whereofI have signed my name to this specification in the presence of two subscribing witnesses.

CHARLES H. FOX.

Witnesses W. B. TAFT, CEAS. W. MURTEELDT. 

